History of tiers 3 changes

In crates/flow/src/runner.rs, lines 294–313 on 3e3cc9475ab303e9a21584fa4cec5c59832fb8b0e041cceebbdcf810f48839ae. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 294,313:crates/flow/src/runner.rs.